Hello! There is a small problem: when the interface language is Russian, and in the address book we are looking for the user, then with Abc write small letters ("иванов", must be "Иванов") at once on firmware:
T23-44.80.0.130
T23-44.80.0.125
T23-44.80.0.95
T23-44.80.0.80
T23-44.80.0.70

On the firmware T23-44.81.0.70 Russian letters are entered in the english Abc format: "Bdfyjd"